Hello,
I’m brand new to Omeka-S, and I’m trying to figure out workflow and “module infrastructure” for displaying objects from externally hosted IIIF presentation manifests in Omeka-S with Mirador or Universal Viewer.
In the README for the Omeka-S-module-IiifServer repository, it suggests you can load externally hosted presentation API manifests by setting the alternative manifest to a specific field like dcterms:hasFormat. I assume this means in the configuration setting for whatever viewer you want to use. I’ve tried doing this in Universal Viewer by setting Manifest property
to Dublin Core : Has Format
. I’ve also assumed (perhaps incorrectly) that I should add an item with metadata that includes a dcterms:hasFormat with a valid presentation manifest. For example, I added a sample object like this:
Title: Test
Has Format: https://damsssl.llgc.org.uk/iiif/2.0/4389767/manifest.json
In order to test this, I’ve added a Sample Page with a Universal Viewer block
with an attachment to my Test
item above.
When I view the page, Universal Viewer displays, but the canvases don’t. That’s because it’s loading this manifest:
https://tennessee.omeka.net/iiif/8/manifest
which loads this JSON:
{
"@context": ["http://iiif.io/api/presentation/2/context.json", "http://wellcomelibrary.org/ld/ixif/0/context.json"],
"@id": "https://tennessee.omeka.net/iiif/8/manifest",
"@type": "sc:Manifest",
"label": "Test",
"license": "http://www.example.org/license.html",
"attribution": "Provided by Example Organization",
"related": {
"@id": "https://tennessee.omeka.net/s/sample/item/8",
"format": "text/html"
},
"seeAlso": {
"@id": "https://tennessee.omeka.net/api/items/8",
"format": "application/ld+json"
},
"metadata": [{
"label": "Title",
"value": "Test"
}, {
"label": "Has Format",
"value": "https://damsssl.llgc.org.uk/iiif/2.0/4389767/manifest.json"
}],
"sequences": [{
"@id": "https://tennessee.omeka.net/iiif/8/sequence/normal",
"@type": "sc:Sequence",
"label": "Unsupported extension. This manifest is being used as a wrapper for non-IIIF content (e.g., audio, video) and is unfortunately incompatible with IIIF viewers.",
"compatibilityHint": "displayIfContentUnsupported",
"canvases": [{
"@id": "/iiif/ixif-message/canvas/c1",
"@type": "sc:Canvas",
"label": "Placeholder image",
"thumbnail": "/modules/IiifServer/asset/img/thumbnails/placeholder-image.png?v=3.5.16",
"width": 200,
"height": 200,
"images": [{
"@id": "/iiif/ixif-message/imageanno/placeholder",
"@type": "oa:Annotation",
"motivation": "sc:painting",
"resource": {
"@id": "/iiif/ixif-message-0/res/placeholder",
"@type": "dctypes:Image",
"width": 200,
"height": 200
},
"on": "/iiif/ixif-message/canvas/c1"
}]
}]
}]
}
I’m obviously misunderstanding something here and not configuring this properly. The presentation manifest above is just displaying my dcterms:hasFormat, but not actually using it as the presentation manifest.
How do you display an object via an externally hosted IIIF presentation manifest in Omeka-S in either Mirador or Universal Viewer, and what modules do I need to do this? Do I just need Omeka-S-module-IiifServer
and either Omeka-S-module-Mirador
or Omeka-S-module-UniversalViewer
. Finally, how do I add the object via the presentation manifest, and what did I misinterpret above?